If you have a 1/3 chance of winning one round and you play 7 rounds. What are the odds you win 4/7 rounds? me and my friends are having a hard time with this question and also i would like to know how you solved it.(adsbygoogle = window.adsbygoogle || []).push({});

Also i'd like to know if a school had 400 kids and there is 365 days in a year. what are the odds of having a persons birthday on each day.

Thanks!

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# If you have a 1/3 chance of winning one round and you play 7 rounds.

**Physics Forums | Science Articles, Homework Help, Discussion**